131944444445 has 8 divisors (see below), whose sum is σ = 172727272800. Its totient is φ = 95959595920.

The previous prime is 131944444399. The next prime is 131944444451. The reversal of 131944444445 is 544444449131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131944444445 - 2⁶ = 131944444381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131944444445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199494895 + ... + 1199495004.

It is an arithmetic number, because the mean of its divisors is an integer number (21590909100).

Almost surely, 2^131944444445 is an apocalyptic number.

It is an amenable number.

131944444445 is a deficient number, since it is larger than the sum of its proper divisors (40782828355).

131944444445 is a wasteful number, since it uses less digits than its factorization.

131944444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398989915.

The product of its digits is 2211840, while the sum is 47.

The spelling of 131944444445 in words is "one hundred thirty-one billion, nine hundred forty-four million, four hundred forty-four thousand, four hundred forty-five".